Our cheapest offers for flights from London Heathrow to Koh Samui

Here you can compare cheap flights from London Heathrow (LHR) to Koh Samui (USM) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Koh Samui. Prices and availability may change at any time.

	Outbound	Return	Airlines	Baggage	Price
London Heathrow Koh Samui	Outbound 08/12/25 2 Stopovers (MUC, BKK) LH2477, LH0772, LH4632 20h 45min	Return 24/12/25 2 Stopovers (BKK, MUC) LH4643, LH0773, LH2476 26h 30min	Lufthansa		£762
London Heathrow Koh Samui	Outbound 08/12/25 2 Stopovers (MUC, BKK) LH2477, LH0772, LH4632 20h 45min	Return 24/12/25 2 Stopovers (BKK, MUC) LH4623, LH0773, LH2472 20h 55min	Lufthansa		£786
London Heathrow Koh Samui	Outbound 08/12/25 2 Stopovers (MUC, BKK) LH2477, LH0772, LH4632 20h 45min	Return 24/12/25 2 Stopovers (BKK, VIE) OS8652, OS0008, OS0335 24h 35min	Lufthansa	?	£837
London Heathrow Koh Samui	Outbound 09/12/25 2 Stopovers (MUC, BKK) LH4197, LH0772, LH4628 16h 50min	Return 01/01/26 2 Stopovers (BKK, VIE) OS8670, OS0006, OS0339 18h 40min	Lufthansa	?	£1,046
London Heathrow Koh Samui	Outbound 11/12/25 2 Stopovers (FRA, SIN) LH0907, LH0780, PG0962 24h 35min	Return 02/01/26 2 Stopovers (BKK, MUC) PG0178, LH0773, LH4192 18h 35min	Lufthansa, Bangkok Airways		£1,292

Important flight information

Flight information: London Heathrow - Koh Samui

Outbound and return from	£749.30
Distance	9907 km
Departure airport	Airport London Heathrow (LHR)
Arrival airport	Airport Koh Samui (USM)
Destination country	Flights to Thailand

Our cheapest offers for flights from London Heathrow to Koh Samui

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Important flight information

Flight information: London Heathrow - Koh Samui

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